You can make the focus better by building a second box that fits into the outer box. Step 4: Create A Focus That You Can Manually AdjustĪn adjustable focus means the lens can be moved with your smartphone. Using a precision knife, cut out the outline so you can fit the magnifying glass into the opening. Take out the handle of your magnifying glass before tracing the outline in the middle of the narrow side you cut out. If you can’t get your hands on black matte paper you can also paint the box, allowing it time to dry. It’s rather simple to evenly spread the glue on the matte paper with a brush. To avoid this, coat the inside of the projector with black matte paper by simply sticking black matte paper onto the interior of the projector. You’ll find that the light that reflects from the walls of the box will create an image noise which will lower the quality of an image. Using a precision knife or scissors cut one narrow side of the outer box and the box’s lid. Step 2: Make The Inside Dark For The Best Image Quality You will also need a rectangular, plain mirror that is the same size as your smartphone. Generally, you’ll require a box that fits your screen. Plus, you will require a rather long box so you can change the distance between your phone and the projecting lens. You will need to place your mirror and the magnifying lens into the box in order to assist the ray of light from your phone in creating a large image projected onto the wall.įor a bright final image, a lot of light needs to make it to the magnifying glass.
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